<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title>Insert title here</title>
	</head>
	<body>
		<div>噢噢噢噢哦哦哦哦哦哦哦哦哦哦噢噢噢哦哦</div>
		
		
		
		
		<script type="text/javascript" src="../js/jquery-1.4.2.min.js"></script>
		<script type="text/javascript">
		$(function(){
			$("div").css("color","red");
			$("div").css({"width":"100px","height":"100px",
				"background-color":"green"});
			
			setInterval(function(){
				//$("div").text("hehe");
				$("div").html("<h1>你好你好好你好</h1>");
			},3000);
		})
			
		</script>
	</body>
</html>